# arp-scan > Send ARP packets to hosts (specified as IP addresses or hostnames) to scan the local network. - Scan the current local network: `arp-scan --localnet` - Scan an IP network with a custom bitmask: `arp-scan {{192.168.1.1}}/{{24}}` - Scan an IP network within a custom range: `arp-scan {{127.0.0.0}}-{{127.0.0.31}}` - Scan an IP network with a custom net mask: `arp-scan {{10.0.0.0}}:{{255.255.255.0}}`